20210510512 has 20 divisors (see below), whose sum is σ = 40421022016. Its totient is φ = 9779279040.

The previous prime is 20210510497. The next prime is 20210510597. The reversal of 20210510512 is 21501501202.

20210510512 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20210510512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20373003 + ... + 20373994.

Almost surely, 2^20210510512 is an apocalyptic number.

It is an amenable number.

20210510512 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20210510512 is a wasteful number, since it uses less digits than its factorization.

20210510512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40747036 (or 40747030 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The spelling of 20210510512 in words is "twenty billion, two hundred ten million, five hundred ten thousand, five hundred twelve".